Strains you will ultimately run, are going to depend on what your goal is, as well as the environment you provide & your own personal level of expertise. In other words, it would be hard to answer the question without a good deal of amplifying information. Just as a stab in the dark, I'll say you want something that is easy to grow, flowers quickly, gives a good yield & is super dank! (I'd say that covers about 90% of us round here lol)
Here are a couple strains you may want to check out if the scenario above fits your situation.
Carmelicious
Northern Lights
AK-47
Big Bud
Just to name a few
Check out THC Bay right here on site. I hear freebies are a possibility, even!